South Korea Is Building a 300-Mph Tiltrotor Drone

The TR-60 can sail 6 to 8 miles above Earth and stay aloft for six hours. Oh, and it'll be watching you

South Korea's newest drone is a doozy. The TR-60 tiltrotor drone can go stupidly fast, up to 310 mph, and fly up to six hours at those speeds. It can take off vertically like a helicopter, but transform to fly like an airplane. It can sail up to the stratosphere, some 6 to 8 miles above the surface of the Earth.

Building one of the fastest and most capable UAVs in the world wasn't cheap—South Korea says development cost $91 million. Mass production won't begin until 2024, at which point the drone will be enlisted for surveillance, recon missions, search and rescue, and other missions.

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